Car-coupling.



-J. 1:. & V. S. DURBIN. GAR COUPLING.

APPLICATION FILED DBO.8,1908.

Patente dApr. 27, 1909;

Minna-SHEET 2.

tion of one couplin UNITED STATES PATENT orsron.

JAMES F. DURBIN AND VOTAW S. DUR-BIN, OF FORT SCOTT, KANSAS.

CAR-COUPLING.

Specification of Letters Patent.-

Patented. April 27, 1909.

Original application filed J me 25, 1908, Serial No. 440,247. Dividedand this application filed December 8, 1608.

Serial No. 466,469. g

To all whom "it may concern:

Be it knoun that we, JAMns l DURBIN and Vo'mw S. D'Unsnv, citizens ofthe United States, residing at Fort Scott, in the county of Bourbon andState of Kansas, have in vented certain new and useful Ina rovements inCar-Couplings, of which the f0 loving is a specification.

This invention relates to new and useful improvements in car couplingmeans and aims as a primary object to provide a car coupler in whichnovel means are provided for positively and securely connecting thecoupling members with the ends of the draw bar for the purpose ofremoving or renewing parts or otherwise.

The present a plication is a division of an application file by us June25, 1908, Serial l\umber 440247.

The above and other objects will appear in the course of the followingdescription in which reference is had to the accompanying drawingsforming a part of this specification, like characters of referencedesignating similar parts throughout the several views, wherein Figure1, is a detailed perspective View of cooperating coupling partsconstructed in accordance with the present invention. Fig.

2, is a longitudinal sectional view of such coupling parts on the line2-2 of Fig. 3.

Fig. 3, 1s a horizontal sectional view of said 1 parts on the line 33 ofFig. 1. Fig. 1, is a detail perspective View showing the endconstructlon of one ofthe coupling parts, the other part complementarythereto being a counterpart in construction. Fig. 5, is a detailedperspective view showing in detached relation the end formations of acoupling part and the draw bar member connected to said part. Fig. 6, isa detailed perspective View of a locking knuckle embodied as a componentpart of the invention. Fig. 7, is a detailed perspective View of one ofthe keys employed to join the coupling part anddraw bar member.

The cou ling parts are generally designated 1 an 2, and the draw barmembers 3. The parts 1 and 2 are similarly constructed and complementone another 111 interfitting relation in which relation they are heldlocked by means to be hereafter described. Hence, it will be understoodthat a desorip part is equally as applicable to both. ach coupl ng partcomprises a head portion 4 anda shank portion 5, which latter has at itsend an enlargement provided on each draw-bar member 3, the

bifurcations 8 being snugly received in grooves 7, and bearing againstshoulders 9 forming the end walls of the grooves 7. Said bifurcationsare in turn formed at their ends nith outwardly extending shoulders orprojections 10 whiclr'are' confined between the said shoulders 9 andtransverse locking keys 11, removably inserted through openings in theside walls of the enlargement or head 6. .One of the keys 11, isillustrated more particularly in Fig. 7. Said keys each have an enlargedstop head 12, the openings through which the keys are inserted beingcountersunk as at 12 to receive the said stop head.

The head portions 4. arefornied with recesses 13 opening through theends thereof. The locking of the arts 1 and 2 is effected primarilybyknuck es 1 1, having angularly extending shanks 15 which work and areconfinedin the recesses 13 by means or" ivot pins 16, which pass throughsaid shan rs 15 at a point adjacent the junction thereof with theknuckles 14. The latter have fiat contacting faces and curved faces and.are of tapering'form, so that their general shape may be described asthat of a half segment of a conical frustum. The head portions 4 areformed in their end faces with curved recesses 17, which extend at aright angle to the recesses 13 and which are shaped confor1n.

ably to, and serve as seats to receive, the knuckles 14, when the latterare engaged with one another as shown more particularly in Fig. 3. Insuch relation said knuckles, by virtue of their general hook shapeengage rearwardly of one another, their flat faccs contacting as aboveintimated. The shanks 15 are formed at their ends with extendedshoulders 18, with which cooperate vertical locking pins 19 which areslidable through recesses 20 and 21 constructed as extensions of therecesses 13, thepins 19 being flat sided so as to be non-rotatable. Therecesses 20 are countersunk to receive stop lugs 22 formed on the endsof the pins 19 to limit the upward movement 0f the latter, the downwardmovement of said ins being limited by cotter pins 23, whic '1 areengaged through the age' acent outer faces of the head portions 4. henthe pins 19 have been throng the lugs 22 and which appear in sec' tionin Fig. 2.

The knuckles 14 are provided in their curved faces with recesses 25 toreceivejinks (not shown) which may beused as coupling elements inemergency cases such as derailment, which links are held in saidrecesses by headed locking pins 26, movable axially of said knuckles.

In use, the ins 19 serve to efl'ectnally lock the knuckl es 14 againstaxial displace ment from their interlocked relation and lateraldisplacement is eflectnally prevented by the tapering contour of saidknuckles which upon undue vertical play of the parts in either directionhave a wedging action against the curved tapering faces of the recesses17.

The manner of connecting the coupling parts to the draw bar memberspermits of the ready renewal and replacement of broken or worn parts andalso of making other repairs which may be found necessary with but aslight expenditure of time and labor.

The manner of holding the pins 19 by the cotter pins 23 and the pins 24assures of said pins 19 being held actively assembled under allconditions and consequently accidental 'disjointment of the coupledparts is impossible. I

From the above it will, be evident that a secure union exists betweenthe coupling parts and the draw bars, and one wherein by mere removal ofkeys 11, immediate and in.

stant separation between the parts may be had, for purposes of repair,renewal or otherwise. Furthermore, it is evident that the formed by saidgrooves being formed with a I transverse keys 11, assume all of thepressure exerted by the draw bar 3, on the one hand, and the couplingmember on the other hand which provides an eflicient and capableconnection.

Having fully described our invention, we claim:

1. In combination with a coupling part having a shank, a draw bar formedwith a bifurcated end, said shank at one end being formed with a pair ofgrooves on opposite top and bottom faces, said grooves forming shouldersat their inner ends, said shank on its side faces above and below thewalls formed by said groove being formed. with transverse openings, saidopenings at one end thereof bcing-countersun a shoulder on eachbifurcation of said draw bar to abut corresponding shoulders of theshank, and a pair 0 independent transverse locking keys each having anenlarged head being passed through said transverse openings to' havetheir enlarged heads engage in said count-er sunk ends of the transverseopenings.

2. In combination with a coupling part having a shank, a draw bar formedwith'a bifurcated end, a shoulder on each bifurcation, said shank at oneend being formed with a groove on its top face and a groove on itsbottom face, said grooves forming a shoulder at their inner ends andbeing disposed between the side-faces of the shank so as to form sidewalls, said bifurcations engaging the top and bottom faces, theshoulders and the side walls formed by said grooves, the top and bottomportions of the sidewalls pair of registering apertures, and atransverse locking key passed thron h each pair of apertures to engagethe shouIders on, said bifurcations.

In testimony whereof we .afiix our signatures, in presence of twowitnesses.

JAMES F. DURBIN. VOTAW S. DURBIN.

Witnesses:

A. C. KARLESKINT, G. A. BECK.

